2007 CADILLAC STS Owners Manual

An AUTOMATIC LIGHTS OFF message will
appear on the DIC, showing that automatic lighting
has been disabled.
As with any vehicle, you should turn on the
regular headlamp system when you need it.
Light Sensor
The light sensor for the DRL is located on top of
the instrument panel. If you cover the sensor, it will
read dark, and the exterior lamps may come on
when you do not need them.
Fog Lamps
Use the fog lamps for better vision in foggy or
misty conditions.
The fog lamp controls are located on the turn
signal/multifunction lever.
-(Fog Lamps):The band with this symbol is
used to turn the fog lamps on and off.
The parking lamps must be on for the fog lamps
to work.
To turn the fog lamps on, turn the fog lamp band
on the lever up to the dot and release it. The
band will return to its original position.
To turn the fog lamps off, turn the fog lamp band
up to the dot and release it. The band will
return to its original position, and the fog lamps
will turn off. If the high-beam headlamps are turned
on, the fog lamps will also turn off. They will turn
back on again when you switch back to low-beam
headlamps.
Some localities have laws that require the
headlamps to be on along with the fog lamps.
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Twilight Sentinel®
Twilight Sentinel®can turn your lamps on and off
for you.
A light sensor on top of the instrument panel
makes the Twilight Sentinel
®work, so be sure it is
not covered.With Twilight Sentinel
®the following will happen:
When it is dark enough outside, the front
turn signal lamps (DRL) will go off, and
the headlamps and parking lamps will come
on. The other lamps that come on with
headlamps will also come on.
When it is bright enough outside, the
headlamps will go off, and the front turn signal
lamps (DRL) will come on, as long as the
exterior lamp switch is in the off position.
If you start your vehicle in a dark garage, the
automatic headlamp system will come on
immediately. Once you leave the garage, it will
take about one minute for the automatic headlamp
system to change to DRL if it is light outside.
During that delay, the instrument panel cluster
might not be as bright as usual. Make sure
the instrument panel brightness control is in full
bright position. SeeInstrument Panel Brightness
on page 220for more information.
You can idle the vehicle with the lamps off, even
when it is dark outside. First set the parking
brake while the ignition is in OFF/ACCESSORY.
Then start the vehicle. The lamps will stay off until
the parking brake is released.
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Twilight Sentinel®also provides exterior
illumination as you leave the vehicle. If Twilight
Sentinel
®has turned on the lamps when you turn
off the ignition, the lamps will remain on until:
The exterior lamp switch is moved from off to
the parking lamp position.
A delay time that you select has elapsed.
SeeVehicle Personalization on page 148to select
the delay time that you want. You can also
select no delay time.
If the ignition is turned off with the exterior lamp
switch in the parking lamp or headlamp position,
the Twilight Sentinel
®delay will not occur.
The lamps will turn off as soon as the switch is
turned off.
As with any vehicle, the regular headlamp system
should be turned on when needed.
Exterior Lighting Battery Saver
If the parking lamps or headlamps have been
left on, the exterior lamps will turn off about
10 minutes after the ignition is turned off. This
protects against draining the battery in case you
have accidentally left the headlamps or parking
lamps on. The battery saver does not work if the
headlamps are turned on after the ignition is
turned off.
If you need to leave the lamps on for more than
10 minutes, use the exterior lamp control to
turn the lamps back on.
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Instrument Panel Brightness
This feature controls the
brightness of the
instrument panel lights.
Press in the center knob on the DIC control panel
until the knob pops out. Then turn the knob
clockwise to brighten the lights or counterclockwise
to dim them. If you turn the knob completely
clockwise, the interior lamps will turn on.
Entry Lighting
The entry lighting system turns on the reading and
dome lamps and the backlighting to the exterior
lamp control when a door is opened or if you
press the remote keyless entry transmitter
unlock button. If activated by the transmitter, the
lighting will remain active for about 25 seconds.
The entry lighting system uses the light sensor; it
must be dark outside in order for the lamps to
turn on. The lamps turn off about 25 seconds after
the last door is closed. They will dim to off if the
ignition is on, or immediately deactivate if the
power locks are activated.
Parade Dimming
This feature prohibits dimming of the instrument
panel displays and backlighting during daylight
hours when the key is in the ignition and the
headlamps are on. This feature operates with the
light sensor and is fully automatic. When the
light sensor reads darkness outside and the
parking lamps are active, the instrument panel
displays can be adjusted by turning the instrument
panel brightness knob. SeeInstrument Panel
Brightness on page 220for additional information.
Base Level Shown,
Uplevel Similar
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Reading Lamps
The reading lamps are located on the overhead
console. These lamps come on automatically when
any door is opened.
For manual operation, press the button next to
each lamp to turn it on or off.
If the reading lamps are left on, they automatically
shut off 10 minutes after the ignition has been
turned off.
Battery Load Management
The battery load management feature is designed
to monitor the vehicle’s electrical load and
determine when the battery is in a heavy discharge
condition. During times of high electrical loading,
the engine may idle at a higher
revolutions per minute (rpm) setting than normal to
make sure the battery charges. High electrical
loads may occur when several of the following are
on: headlamps, high beams, fog lamps, rear
window defogger, the climate control fan at high
speeds, heated seats and engine cooling fans.If the battery continues to discharge, even with the
engine idling at a higher rpm setting, some
electrical loads will automatically be reduced.
When this occurs, the rear window defogger may
take slightly longer to clear the glass and the
fan may cut back to a lower speed. For more
battery saving information, see “Battery Saver
Active Message” underDIC Warnings and
Messages on page 264.
Electric Power Management
The vehicle has Electric Power Management (EPM)
that estimates the battery’s temperature and state
of charge. It then adjusts the voltage for best
performance and extended life of the battery.
When the battery’s state of charge is low, the
voltage is raised slightly to quickly put the charge
back in. When the state of charge is high, the
voltage is lowered slightly to prevent overcharging.
If the vehicle has a voltmeter gage or voltage
display on the Driver Information Center (DIC), you
may see the voltage move up or down. This is
normal. If there is a problem, an alert will be
displayed.
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The battery can be discharged at idle if the
electrical loads are very high. This is true for all
vehicles. This is because the generator (alternator)
may not be spinning fast enough at idle to
produce all the power that is needed for very high
electrical loads.
A high electrical load occurs when several of the
following loads are on: headlamps, high beams,
fog lamps, rear window defogger, climate
control fan at high speed, heated seats, engine
cooling fans, trailer loads, and loads plugged into
accessory power outlets.
EPM works to prevent excessive discharge of the
battery. It does this by balancing the generator’s
output and the vehicle’s electrical needs. It
can increase engine idle speed to generate more
power, whenever needed. It can temporarily
reduce the power demands of some accessories.Normally, these actions occur in steps or levels,
without being noticeable. In rare cases at the
highest levels of corrective action, this action may
be noticeable to the driver. If so, a Driver
Information Center (DIC) message might be
displayed, such as Battery Saver Active or Service
Battery Charging System. If this message is
displayed, it is recommended that the driver
reduce the electrical loads as much as possible.
SeeDIC Warnings and Messages on page 264.
Inadvertent Power Battery Saver
This feature is designed to protect your vehicle’s
battery against drainage from the interior
lamps, trunk lamp, glove box lamp, or the garage
door opener. When the ignition is turned off,
the power to these features will automatically turn
off after 10 minutes (three minutes if a new car
has 15 miles (24 km) or less). Power will be
restored for an additional 10 minutes if any door is
opened, the trunk is opened or the courtesy
lamp switch is turned on.
222

Head-Up Display (HUD)
{CAUTION:
If the HUD image is too bright, or too high
in your eld of view, it may take you more
time to see things you need to see when it
is dark outside. Be sure to keep the HUD
image dim and placed low in your eld
of view.
If equipped, the Head-Up Display (HUD) allows
you to see some of the driver information that
appears on your instrument panel cluster on the
windshield.
The information may be displayed in English or
metric units and appears as an image focused out
toward the front of your vehicle. To change
from English to metric units, seeDIC Controls and
Displays on page 258.
The HUD consists of the following information:
Speedometer
Turn Signal Indicators
High-Beam Indicator Symbol
Driver Shift Control Transmission Feature,
seeAutomatic Transmission Operation on
page 116
Check Gages Icon
Adaptive Cruise Control Features and
Indicators (If Equipped), seeAdaptive Cruise
Control on page 197
Forward Collision Alert Features and
Indicators (If Equipped), seeForward Collision
Alert (FCA) System on page 184
Radio Features
United States version shown, Canada similar
223

Be sure to continue scanning your displays,
controls and driving environment just as you would
in a vehicle without HUD. If you never look at your
instrument panel cluster, you may not see
something important, such as a warning light.
Under important warning conditions, the CHECK
GAGES message will display in the HUD. View
your Driver Information Center (DIC) for more
information.
The HUD controls are
located to the left of the
steering wheel on the
DIC control panel.
~(Head-Up Display):Press this button to
change the position of the HUD on the windshield.
Press the top part of the button to move the
HUD image up. Press the bottom part of the button
to move the HUD image down.You can also adjust the brightness of the HUD
image. Press the knob on the center of the
DIC control panel in until it pops out and then pull
the knob until is completely extended. Turn the
knob clockwise or counter-clockwise to increase or
decrease the brightness. If you turn the knob all
the way to the left, the HUD image will turn off.
To adjust the HUD so you can see it properly,
do the following:
1. Adjust the seat to a comfortable driving
position. If you change your seat position later,
you may have to re-adjust your HUD.
2. Start your engine and press the top or bottom
of the HUD button to center the HUD image in
your view.
The HUD image can only be adjusted up and
down, not side-to-side.
3. Turn the knob on the DIC control panel to
adjust the brightness of the HUD image.
The brightness of the HUD image is determined
by the light conditions in the direction your vehicle
is facing and where you have the HUD set.
If you are facing a dark object or a heavily shaded
area, your HUD may anticipate that you are
entering a dark area and may begin to dim.
224